$ ltrace dmidecode                                                                                                                                                 
__libc_start_main([ "dmidecode" ] <unfinished ...>
memcpy(0x3ffee4fbac8, "P\030A\0\0\0\0\0\001\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0d\0\0\0\0\0\0\0"..., 320)                   = 0x3ffee4fbac8
getopt_long(1, 0x3ffee4fbe08, "d:hqs:t:uV", 0x3ffee4fbac8, nil)                                                      = -1
__printf_chk(1, 0x40d5d0, 0x40d5c8, 0# dmidecode 2.12
)                                                                               = 17
fopen("/sys/firmware/efi/systab", "r")                                                                               = 0x35410010
fgets("ACPI20=0x43fa397014\n", 63, 0x35410010)                                                                       = 0x3ffee4fbc78
strchr("ACPI20=0x43fa397014\n", '=')                                                                                 = "=0x43fa397014\n"
strcmp("ACPI20", "SMBIOS")                                                                                           = -144
fgets("ACPI=0x43fa397000\n", 63, 0x35410010)                                                                         = 0x3ffee4fbc78
strchr("ACPI=0x43fa397000\n", '=')                                                                                   = "=0x43fa397000\n"
strcmp("ACPI", "SMBIOS")                                                                                             = -144
fgets("SMBIOS3=0x43fa395000\n", 63, 0x35410010)                                                                      = 0x3ffee4fbc78
strchr("SMBIOS3=0x43fa395000\n", '=')                                                                                = "=0x43fa395000\n"
strcmp("SMBIOS3", "SMBIOS")                                                                                          = 204
fgets("SMBIOS3", 63, 0x35410010)                                                                                     = nil
fclose(0x35410010)                                                                                                   = 0
__fprintf_chk(0x3ff862713f0, 1, 0x40d640, 0x40d580/sys/firmware/efi/systab: SMBIOS entry point missing
)                                                                  = 53
free(nil)                                                                                                            = <void>
+++ exited (status 1) +++